#region The MIT License
// The MIT License
// 
// Copyright (c) 2009 octalforty studios
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#endregion
using System.IO;

namespace octalforty.Wizardby.Core.Db
{
    public abstract class EmbeddedDbConnectionStringBuilderBase : DbConnectionStringBuilderBase
    {
        private readonly string databaseFileExtension;
        private readonly bool extensionRequired;
        private readonly bool allowArbitraryExtension;

        protected EmbeddedDbConnectionStringBuilderBase(string databaseFileExtension, bool extensionRequired, bool allowArbitraryExtension)
        {
            this.databaseFileExtension = databaseFileExtension;
            this.allowArbitraryExtension = allowArbitraryExtension;
            this.extensionRequired = extensionRequired;
        }

        protected EmbeddedDbConnectionStringBuilderBase(bool ignoreUnmappedKeys, string databaseFileExtension, 
            bool extensionRequired, bool allowArbitraryExtension) : 
            base(ignoreUnmappedKeys)
        {
            this.databaseFileExtension = databaseFileExtension;
            this.allowArbitraryExtension = allowArbitraryExtension;
            this.extensionRequired = extensionRequired;
        }

        public override void AppendKeyValuePair(string key, string value)
        {
            //
            // If we have a "database" key, append extension to "value" 
            // if it's not already there.
            if(key.ToLowerInvariant() == "database")
            {
                string extension = Path.GetExtension(value);
                if((extensionRequired && string.IsNullOrEmpty(extension)) || !allowArbitraryExtension)
                {
                    base.AppendKeyValuePair(key, value + databaseFileExtension);
                    return;
                } // if
            } // if

            base.AppendKeyValuePair(key, value);
        }
    }
}
